I'm a root user, or I have power user access or administrator access across AWS accounts. However, when I sign in to the Amazon Simple Storage Service (Amazon S3) console, I don't see all the buckets that I have access to. How can I access those buckets that aren't listed?

By default, the Amazon S3 console lists only the buckets that are owned by the account that you use to sign in. The console won't list buckets in other accounts, even if you have access to them. Instead of using the console, use the AWS Command Line Interface (AWS CLI), an AWS SDK, or the Amazon S3 REST API to programmatically access buckets in other accounts.

Follow these steps to configure the AWS CLI to access a bucket in another account: